Founding Fullstack Engineer – San Francisco, CA
5 days ago
Founding Fullstack Engineer – San Francisco, CA (Hybrid)
My client is a well-funded, high-growth startup delivering embedded marketing tools to small businesses through vertical SaaS platforms. Already launched with major partners reaching hundreds of thousands of end users, they're now hiring a founding fullstack engineer to help scale their impact.
About the Role
This is a rare opportunity to join as one of the first non-cofounder engineering hires. You'll own core product decisions, ship production-grade code, and help architect the technical foundation of a platform that's transforming how SMBs grow.
Ideal for builders who thrive in early-stage environments and want full ownership, momentum, and meaningful customer impact.
What You'll Build
- Embedded marketing tools (email, SMS, loyalty, and more) for vertical SaaS platforms
- REST APIs and fullstack features that drive real-world SMB growth
- AI-powered workflows that simplify marketing for non-technical users
- Scalable infrastructure using Rails, React, Redis, Postgres, and Kubernetes on AWS
What My Client Is Looking For
This role is for engineers who've thrived in high-growth environments and want to do it again—with even more ownership.
Must-haves:
- CS degree from a top-tier university OR 5+ years at a top startup (e.g. Stripe, Plaid, Notion)
- Strong fullstack experience (React + backend; Ruby on Rails preferred or willing to learn)
- Demonstrated career momentum and technical leadership
- GitHub that shows real work—not just buzzwords
Also open to:
- H1B transfers
- New grads from top 10 schools or with standout internships (FANG/unicorns)
- Must be strong self-starters with active GitHubs and fullstack side projects
- Compensation up to $170K for top-performing new grads
Nice-to-haves:
- Rails experience at a startup
- Experience building for SMBs or embedded platforms
Early-stage startup experience (0- 1 builder mindset) - Very active GitHub (thousands of green squares)
Please note: My client is not considering candidates who are currently unemployed, recently self-employed, or have only worked at large companies for extended periods.
Location & Culture
- Hybrid in San Francisco (3–4 days/week in-office near Montgomery BART)
- Relocation assistance available
- Lunch, dinner, and great coffee provided daily
- In-person culture with a tight, ambitious team that truly cares
Compensation & Benefits
- Senior: $225K–$245K
- Mid-Level (3+ yrs): $190K–$210K
- Junior: $175K–$195K
- Top new grads: Up to $170K
- Equity: Top-of-market
- Health, dental, and vision insurance
- 401k
- Unlimited PTO
- Team-wide travel and offsites
-
Founding Engineer
1 day ago
San Francisco, California, United States Amadeus Search Full timeRole: Founding Engineer (Fullstack)Location: San Francisco, CA (On-site)Compensation: $150K – $200K + 0.25% – 1% equityVisa: Sponsorship availableCompanyStealth early-stage startup founded in 2024 with $2M in funding and a 5-person team. The company is building AI-powered agents specifically for local governments to improve operations, citizen...
-
Founding Software Engineer
6 days ago
San Francisco, California, United States Rise Technical Full timeFounding Software Engineer (AI Startup)$150,000 - $250,000 + Strong Equity + Full BenefitsOn-site, San FranciscoLooking for a role where you'll have real ownership, direct impact, and the ability to shape both product and technical direction from day one? This is an opportunity to join a fast-moving startup building category-defining technology at the...
-
Fullstack Engineer, Seller Engineering
6 days ago
San Francisco, California, United States Whatnot Full timeLocationSan Francisco, CA, Los Angeles, CA, Seattle, WA, New York, NYEmployment TypeFull timeLocation TypeRemoteDepartmentEngineeringCompensation$180K – $215K • Offers EquityThe salary or hourly rate range may be inclusive of several levels that would be applicable to the position. Final salary or hourly rate will be based on a number of factors...
-
San Francisco, California, United States City and County of San Francisco Full timeCompany Description Clerically amended on September 25, 2025 Established in 1866, the San Francisco Fire Department is rich in tradition and history. From the Great Earthquake and Fire of 1906 to the Loma Prieta Earthquake of 1989, the Department has grown to meet the many challenges along the way. Today, the San Francisco Fire Department serves an...
-
Founding AI Engineer
1 week ago
San Francisco, California, United States Mor Search Full timeFounding AI Engineer (Agentic Systems | Real-Time)Location:San Francisco, CA (On-site)Role Type:Full-TimeExperience:3–8+ yearsCompensation:$150,000–$250,000 + meaningful equityWe're partnering with aseed-stage startupin San Francisco that's building a next-generationreal-time agentic AI platformfor high-stakes communication environments. This is not...
-
Founding Engineer
7 days ago
San Francisco, California, United States Vamo Full time $150,000 - $250,000Founding Software Engineer — San Francisco, CA (in-person) About us Our partner is building a one-person AI marketing service. We went from 0 to $500k ARR in 90 days while in stealth and are now assembling an all-star team to launch and scale. The role Work directly with the CTO to design, build, and scale the world's first AI-native B2B content...
-
Senior Fullstack Engineer
2 weeks ago
San Francisco, California, United States Orchestra Full time $150,000 - $250,000 per yearAbout OrchestraOrchestra helps companies navigate the journey from discovery to medicine by connecting science, operations, and finance in an intelligent platform. We're on a mission to make every R&D dollar count.Developing new medicines is a societal imperative to improve human health and reduce medical costs. Brilliant science needs effective management...
-
FullStack Engineer, Observability
17 hours ago
San Francisco, California, United States LangChain Full timeAbout LangChainAt LangChain, our mission is to make intelligent agents ubiquitous. We provide the agent engineering platform and open source frameworks developers need to ship reliable agents fast.Our open source frameworks, LangChain and LangGraph, see over 90+ million downloads per month and help developers build agents with speed and granular control....
-
Founding Engineer
20 hours ago
San Francisco, California, United States Amadeus Search Full timeRole: Founding EngineerEmployment Type: Full-timeLocation: On-site, San Francisco, CACompensation: $110,000 – $170,000 base salary + significant equityAbout the CompanyThis early-stage AI startup is building an advanced voice bot platform for financial services, with customers including Fortune 500 banks and insurers. The company's technology automates...
-
Founding Full Stack Engineer
5 days ago
San Francisco, California, United States Searchability® Full timeFOUNDING FULL STACK ENGINEER – SAN FRANCISCO, CA (ON-SITE) – $130K–$230K + EQUITYOn-site founding engineer opportunity with a fast-growing AI technology companyShape the core data platform powering national security and defense innovationWork across the stack with modern technologies like React, , and PythonCompetitive salary and equity (0.5%–1.5%)...